list_all_keys

THE RISK

Low Risk

Why list_all_keys needs a policy

This tool retrieves and lists authentication keys, which is a read-only query operation. While exposure of key metadata could facilitate social engineering or further attacks, the tool itself only retrieves existing information without side effects. Severity is low because it returns a list (likely safe to display) rather than revealing secret key material itself, though context matters.

From the tool's definition Tool name 'list_all_keys' and description 'Get a list of all authentication keys on the Searchcraft cluster' indicate retrieval of existing data without modification, deletion, or execution of external operations.

Documented attack patterns abuse exactly the kind of access list_all_keys gives an agent:

POLICY

How to control list_all_keys

PolicyLayer is an MCP gateway — it sits between your AI agents and Searchcraft MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_all_keys:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_all_keys": {}
  }
}

list_all_keys is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Searchcraft MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

More Searchcraft MCP Server tools

Destructive delete_all_documents Delete all documents from an index. The index will continue to exist after all documents a Destructive delete_all_keys Delete all authentication keys on the Searchcraft cluster. Use with extreme caution! Destructive delete_all_stopwords Delete all custom stopwords from an index. This only affects custom stopwords, not the def Destructive delete_all_synonyms Delete all synonyms from an index. Destructive delete_document_by_id Delete a single document from an index by its internal Searchcraft ID (_id). Destructive delete_documents_by_field Delete one or several documents from an index by field term match (e.g., {id: Destructive delete_documents_by_query Delete one or several documents from an index by query match. Destructive delete_federation Delete a federation permanently.

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_all_keys

What does the list_all_keys tool do? +

Get a list of all authentication keys on the Searchcraft cluster. It is categorised as a Read tool in the Searchcraft MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_all_keys? +

Register the Searchcraft MCP Server MCP server in PolicyLayer and add a rule for list_all_keys: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Searchcraft MCP Server. Nothing to install.

What risk level is list_all_keys? +

list_all_keys is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_all_keys? +

Yes. Add a rate_limit block to the list_all_keys rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block list_all_keys completely? +

Set action: deny in the PolicyLayer policy for list_all_keys. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides list_all_keys? +

list_all_keys is provided by the Searchcraft MCP Server MCP server (searchcraft-inc/searchcraft-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Searchcraft MCP Server tool call.

Start from Searchcraft MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →